This forum is filled with people who have essentially restated the Scientology theory on their own, just using different terms.

This forum constantly accuses all sorts of people of being "demonically possessed". This forum constantly accuses all sorts of people of being "psychically controlled by evil entities" and "attacked by evil spirits". This forum constantly accuses all sorts of people of "doing the work of their alien masters" in all sorts of convoluted cosmic conspiracies.

Hubbard used a less classical form of terminology for these age-old concerns. Lovecraft, Crowley, the Freemasons, the Rosicrucians and other had their own terms for these phenomena and Scientology has theirs.

The difference? Scientology is freakin' richer than some world nations, and thus has the money and the willpower to investigate these phenomena.

I wouldn't automatically embrace all their specific beliefs just on someone's say-so, but neither would I discount anything about their theories either.